Dave Cullen isn’t as unhelpful as you think…
If you actually read “Columbine” he gives a pretty big hint as to where they’re storing the Basement Tapes…
“In April 2007, Judge Babcock finally ruled. “There is a legitimate public interest in these materials so that similar tragedies may hopefully be prevented,” he (Judge Babcock) wrote. “I conclude, however, that the balance of interests still strikes in favor of maintaining strict confidentiality.” He settled on a compromise. The transcripts would be sealed at the national archives for twenty years. The truth would come out in 2027, twenty-eight years after the massacre.“
Not to burst your bubble here but.. his book is referring to the parents’ deposition transcripts being stored in the National Archives not to be released in 2027. Transcripts are vastly different media format from the Basement video tapes.
See here.Do you reckon there’s a chance where they could be released at the same time though among other evidence?
No. This is because the tapes have since been declared officially destroyed in 2011 but publicly announced February 2015.
“ The tapes also became highly restricted exhibits in civil lawsuits filed against a pharmaceutical company and the killers’ parents. Following the settlement of those cases, U.S. District Judge Lewis Babock ordered that the parents’ depositions be turned over to the National Archives and Records Administration and kept under seal for twenty years. It’s not clear to what extent some exhibits may also have been preserved, but a separate decision by Babcock ordered that the copies of the tapes used in the litigation be destroyed.
Kelley says Sheriff Ted Mink approved the destruction of the tapes – along with shell casings, weapons and other remaining Columbine evidence – in early 2011. The obliteration of the videos was only acknowledged recently, though, after a private party filed an open records request seeking access to the basement tapes.
Westword article “Columbine Killers’ Basement Tapes Destroyed”
I know that they were destroyed (allegedly) but it still sucks because that was some pretty important evidence that was crucial to the case. I do understand why they were destroyed though. Here’s hoping there are still some copies out there🤞🏼hahah
Agreed. When they say “copies of the tapes” we can speculate that another agency like the FBI has their digital copies in safe keeping. Of course, how the existing, secreted away copies get released is damn near impossible because you can’t request something you only suspect resides with a government agency when they’ve been publicly announced as destroyed.
In any case, my initial response to this discussion is that the National Archives doesn’t have the Basement Tapes so they won’t be releasing them. – they will only be releasing the depositions…and ten long years from now. 
The Everlasting Contrast 